1, barley contains protein, fat, sugar, cellulose, carbohydrate, trace elements such as calcium, phosphorus and iron, vitamin B 1, vitamin B2, niacin, allantoin and so on.

2. The content of phosphorus and niacin per100g barley is 38 1 mg and 4.8mg respectively, which is the highest in cereals. It is rich in nutrients, which can't be replaced by other crops. II. The role of barley

1 Barley is a healthy food with low sodium and fat, which can provide energy and help to lose weight.

2. Barley contains a compound that can inhibit the liver from producing "bad cholesterol", which can damage blood vessels and lead to heart disease and stroke.

3. Barley is an excellent source of soluble fiber, which can reduce the content of cholesterol in blood and low-density lipoprotein.

4. Barley also has the function of improving digestion and relieving constipation. It can replenish qi, relieve middle energizer, dissolve food and restore milk. It is suitable for people with weak stomach, indigestion, loss of appetite caused by liver disease, and full stomach and abdominal distension after eating.

5. Barley is also commonly used for adjuvant treatment of physical weakness, nephritis edema and urinary system infection after illness.

6. Malt is the main raw material for making beer. Malt (maltose) made by boiling after processing is nutritious, which is a tonic for the old, the young and the weak, and can also help digestion and stagnation.